Steam-boiler.



LG. PARKER. STEAM BOILER.

7 APPLICATION FILED MAE.21. 1907. 943,452. Batented Dec. 14, 1909.

2 SHEETSSHEET l.

WITNESSES.- FIG. 11 11 0 FM; J 4. 7 BY l/V VE N 70/? ATTORIVEK .J. O. PARKER.

I STEAM BOILER. APPLICATION FILED M1141. 1907.

Patented Dec. 14, 1909.

2 SHEETSSHEET 2.

INVENTUR WITNESSES: MM.

7 citizen of theUnited States, residing in the city of Philadelphia, county of Philadel- UN T n STATE PArEnToFF icE;

JOHN c. rARKEIeoF PHILADELPHIA, PENN'sYLvAwTA.

STEAM-BOILER.

sb fi e of a m Patented Dec-14, 1909.

I i Applic tion tiled March 21,1907. Serial No. 363,540.

To all whom it may concern: V

Be it known, that I, Jenn C. PARKER, a

pliia, and State of Pennsylvania, have invented certain lmprovements 1n Steam- Boilers,nof which thefollowing is a speci- -ficatio This invention is a steam boiler having a thermal storage system comprising a storage chamber connected with a feed water" heater and a steam generator. In its preferred construction there are combined, in

a single-setting, .aheat storage drum, an automatically regulated feed water heater having tubes in circuit with the storage drums, a steam generator havingtubes and a drum in circuit with the storage drum,

"and a steam superheater having tubes and a. drum connected With the generator.

Water is circulatedthrough the feed water I heater and discharged intothe upper part 'of'the thermal storage drum in such man-- .ner as to-con'de-nsc' steam discharged'm the upper part; of the drum from. the super 'heater. The Water is thus heated to the boiling point, and is carried froin'tl'ie'bottom of the storage drum' to the generator, the steam'g encratcd thereby being passed through the superheatei" and collected in the superheat storage drum, whence it is -passed'to the thern'lal storage drums or .dra notf as desired.

-The nature and characteristic features of my invention. will more fully appear by reference to the following description and' the accompanying;drawings in illustration parts shownin section; Fig. view and Fig; 4 ma sectional side view of .Figurel' represents a sectional elevation of a boiler em-bodyii'ig the improvements; Fig. 2 is afront-elevation of the same with is a phi-n automatic feed \Vtlitl' regulating mechanism. Referring to the'drawmgs, the pipes -1. and

4 2, under. control of the valves 3 and'4-,' lead to the tubes 5, through whichthe feed Water Is circulated and thence carried by pipes (3 to I pipes'i'i nthe upper partsof the storage d rums 8, the drums being connected by th't pipes- Sand 9. The pipes 7 have the-rein theaper-i tures' 10 by which Water is. discharged upwardly in small streams or spray, to avoid hammer and to eficct the rapid absorption of heat from steam. Pipes 2 lead from the 14,,to the'generator drums 11 connected by the pipes 35 and 3:3. A downflovv pipc economizer. 5. to provide a vatcrcircuit comprlsingthe storage drumsand the feed ahigher-level than the inlet to the pipe 15 age drums and prevent circulation through the feed water coils.

"llheadmlssion ot the feed water may be matically,by the valve 4 operatedby a usual form of pressure regulator 4'; To operate the pressure regulator, a pipe 16 connects it 18 .is carried by a lever 19 t'ulcrumedon a bearing 20 and carrying a float 21, which pipe 16. .lYlienthc water in the drums S rises 'sojasi to lift-the float 2l,the valve l8 -i'all's and steam pressure through thepipc 16 causes the regulator 4 to close the valve pressure in the pipe .lti-and permits thevalve outlet from the pipe. I

' The fecdwatcr should be regulated in ac -(()l(ltlll0t with the tiuctuationsof the loads. When the .load is light the storage drum should be filling up and when the load is the water level in the generator maintained light loads this results in heating water by means of l1ve=steam and heavy loads can be hot feed water. This leads to economy fires v narily be required. In other vvords there 15 leads from thestorage'drmn S to the -Water tubes. 'The inlet to the pipe 3 is at' so that the former shall not drain the stor with the topsot' drums S, the pipe bci1ig'controlled by the hand valve l7 and the automatic valve lS-vvithiu the drum. The valve normally elevates-the valve and closes the l to open when the valve 18 has closed the.-

,heavy the feed water should be shut oil and.

throufgh the saving in the number of banked orthe extraboil'ers which Wou1d'ordi-' .8 through the pipelil, controlled by a valve controlled manually; by the valve 3, or auto.

t and cut oil the low to the. cronomizcr or iced \vater coils 5. A \vhi'stle l(3'".rcl1cves the by. hot Water t'romthc storage drums. v\Nith '105 carried \vit'lra less number of boilersusing would be a higher boiler rating with light loads and lower boiler rating with heavy loads. 4

To regulate the introductionof cold feed water in accordance with the fluctuations of the load, 1 preferably use the methodillustrated by the apparatus shown in Figs. 3 and 4. Here thefeed water pipel is con ncted with the feed water main 22, by

branch pipes 23, 24, and 25 controlicd by the respective regulators 26, 27 and 28. These regulators. are set" to open at difiereit pressures (say 26 at 150 pounds, 27 at 152 pounds and 28 at 154 pounds) communicated from the pipe 1 by the respective pipes 28 30 and 31. lrVhen the pressure is below 150 pounds, the feed is shut off entirely from the storage drums. This does not affect the feed to the boilers, however, unless the storage drums are allowed to get empty, \\'l)1Cll may happen .-without danger ifthe-attendant has raised .tlie water line in the boilers to the highest permissible point during light loads so that' --boiler proper.

, erated by a usual regulator apparatus 33 pipe 33.

controlled by the boiler pressure through a The damper regulator must be set higher than the water regulator, say at 156 pounds. As a result of the surplus boiler power. the pre'ssure runs up to say 150 and opensthe regulator 26. This condenses some of the steam and if theload is sutiicient stops the rising prcssurewithout assistance from the damper. If the attendant finds that his storage drums are not filling rapidly enough to be-ready for the heavy loads, he puts on anotherboiler or adjusts the draft.

. The pressureagain rises'and at 1T2 pounds opens the regulator 27 which condenses more steam and thus regulates the pressure. This operation can be repeated with any number of regulators, When the operator finds that his tanks are filling too rapidly he cuts out a boiler or cuts down the draft, the pressure falls, and one of the feed regulators shuts off. The .pressure is thus maintained with less boilers and the tanks do not fill so rapidly. It will thus be seen that it will be a comparativelyeasy matter for the attend ant, knowing-his daily load conditions. to

" regulate to a nicety histime' for filling and the condensation of the surplus emptying his thermal storage'tanlts.

"LWhilc this system aims primarily at ing a store of feed water for heavy loa U steam oi"- light loads, it"will conduce to economy to save as much aspossible of the heat from the gases on theirway-to the stack. -It is therefore desirable to connect feed tubes to the storage drums in the path of theheatprl gases and pass the feed water through them to absorb as much heat as possible 'anclfi-t-hus condense the smallest practicable a'mount of steam for any given quantity? of hot feed.-

In the construction shown, I have com storage drums, and superheater in the same practicable efficiency, economy of construction and compactness, the several elements etficient, economical and most complete absorption of the heat that is practicable.

The thermal, storage drums Starev placed in the top of the boiler setting in" the path of the furnace gases as they escape to the flue 34 and beneath them are placed the steam generator drums 11. The generator tubes 36, connected with the water space of the generator drums by the pipes 37 and with the steamspace of the same by the pipes 38, are in the lower part of the furnace where they are subject to the higher heatingaction of the furnace gases; and in the lower temperature region, between the en- .water tubes 5. In the hottest part of the furnace are placed the superheater tubes 39,

erator drums by the pipe 40 and .d-ischargsteam drum 42. The drum 42 is disposed between the drums 8 and 11, inithe path of the escaping gases, and is connected/with the tops of the drums 8 by the pipes 42 and shields 8*, through and within which super heated steam is discharged by the pipes l2.

shields contain saturated steam by which the' protected against the otherwise injurious heating effect of the superheated steam upon the metal. Steam is taken from the drum 42 by the main 13.

8 are the hoods 4%, which cover the blow pipes to, by which mud deposited in the drums can be drawn under the edges of the hood and removed, and'in a similar manner from the drums 11 by pipes l6.

and means for conveying water from said chamber to said generator.

2. In a steam-boiler, a thermal st orage setting with a View to obtaining the highest era tor drums and tubes, are placed the: eed

ing by the pipe ll into the superheated l2 co'ntrolled by the non-return valve 42 Within the tops of the drums 8 are the tops of thedrums as well as the shields are Extending along the bottoms of the drums any mud deposited'therein can be removed.

1. In a steam boiler, a generator, a superheater and. supplied with steam therefrom, means tor, supplying water to said chamber' bined the generator, economizer, thermal '7 being placed in the proper relation to each other and to the heating gases to effect the i connected with the steam space of the gen- The spaces between the drums andthese livering collecting chamber, a

chamber, a superheater having a chamber 1 storage chamber, a generator having a steam connected with and discharging storage chamber, and supplying steam to saidsuper-heater, and means for supplying water to said storage-chamber. b

3. In a steam boiler, a generator having a storage Cl121n1b81,; :tt passage from said collecting chamber to said storage chamber, a feed water heater dewater to said storage chamber, and means for delivering age chamber to said generator.

4. In a steam boiler, an economizer, a storage chamber to which water is delivered by said economizer, a generator having a chamber from which steam is delivered to said storage chamber, and means for delivering water from said storage chamber to said generator.

5. In a steam boiler, an economizer, a storage chamber to which water is delivered by said economizer, a generator having a chamber connected with said storage chamber,means for delivering water from said storage chamber to said generator, and a superheater towhich steam is delivered from said generator.

6. In a boiler, in a single setting, feed water tubes, a thermal storage drum to which water is delivered from said tubes, a generator comprising tubes and a drum connected therewith, a conduit leading from said generator drum .to said storage drum, and a conduit for delivering water from said storage drum to said generator drum.

7. In a steam boiler, in a single setting, feed water tubes, a storage drum to which water is delivered by said tubes, a generator. having a drum from which steam is delivered to said storage drum, a conduit by which water is delivered from said storage drum to said generator drmn, superheater t bes to which steam is delivered from said generator drum,

superheater tubes.

8. In a steam boiler, a thermal storage chamber, a pipe with apertures therein for delivering Water within said storage chamber, an economizer with which said pipe is connected,-a generator having a steam collecting chamber, and a pipe connecting said collecting chamber with said storage chamber.

9. In a steam boiler, a thermal storage chamber, a pipe with apertures therein for delivering water in the upper part of said water from said storand a superheat storage drum to which steam is delivered from said into said gollecting chamber, a generator connected with l l l l l l l ll a pipe leading from the top of said collecting chamber to the top of said storage chamber, and a pipe for delivering water from said storage chamber to said collecting chamber.

10. In a steam boiler, a steam generator, a thermal storage drum connected therewith, a conduit for delivering water to said drum, mechanism comprising a pressure regulator for controlling the tlow through said couduit, a-conduit leading from said regulator to said drum,.a valve for controlling said conduit, and means whereby the rise of water in said drum operates said valve.

11. In a steam boiler, a generator having a collecting chamber, a storage chamber, a conduit leading from the upper part of said collecting chamber to the upper part of said storage chamber, a conduit leading from the lower part of said storage chamber to said collecting chamber, a conduit for delivering water to said storage chamber, mechanism operated by pressure for controlling the flow through said last named conduit, a conduit for conveying pressure from said storage chamber to said mechanism, a valve which automatiadly closes said last named .condnit, and means whereby the rise of water in said storage chamber opens said valve.

12. In a steam boiler, a generator, at thermal storage chamber connected with said generator, a feed water heater connected with said storage chamber, a conduit by which water is supplied to said heater, and a plurality of devices operated by vzfrious pressures for regulating the rate of delivery of water to said heater.

13. in a steam boiler, a thermal storage system comprising a chamber, means for ilelivering steam to said chamber, means tor delivering water to said chamber, and pressure regulated valve mechanism for automatically regulating the delivery of water to said chamber.

14. In a steam boiler, a drum having a shield in the top thereof, means for introducintroducing steam into said drum beneath said shield.

my name, this 125th he subscribing witnesses.

JOHN (i. PARKER.

Witnesses:

ltonnn'r J. .ui-zs llanmcv, .lAs. t Dnxxv, Jr.

ing water into said drum, and means for In testimony whereof .I have hereunto set 

